I'm trying to decide if all models should have the blackout back, or just the 1LE, ZL1 and Z/28 which have the flat-black hood? Or is the body-color back a look that only the Z/28 should have?

Here's a render of the Z/28 with the blackout back, and the Base model with the body-color back.

And here's a render of the opposite; the Z/28 with the body-color back and the Base model with the blackout back.
The body-color back looks nice and clean on the Base model, but it also looks good on the Z/28. Having different back treatments is one way of creating a quick visual difference between the regular and high-performance track models. What do you guys think... or does it matter?